1. #!/usr/bin/env node
  3. const process = require('process');
  5. /**
  6. * Aggregates values of command-line options.
  7. * @returns {object} An object containing the aggregated options.
  8. */
  9. function aggregateOptions() {
  10. const options = {}; // Initialize an empty object to store options
  12. for (let i = 0; i < process.argv.length - 2; i += 2) {
  13. const optionName = process.argv[i];
  14. const optionValue = process.argv[i + 1];
  16. if (optionName === '--debug') {
  17. options.debug = true; // Set debug flag if --debug is present
  18. } else if (optionName === '--value') {
  19. options.value = optionValue; // Store the value of --value
  20. } else if (optionName === '--add') {
  21. if (options.add) {
  22. options.add = parseInt(optionValue, 10) + parseInt(options.add, 10); // Add to existing value
  23. } else {
  24. options.add = parseInt(optionValue, 10); // Initialize if --add not present
  25. }
  26. } else if (optionName === '--multiply') {
  27. if (options.multiply) {
  28. options.multiply = parseInt(optionValue, 10) * parseInt(options.multiply, 10);
  29. } else {
  30. options.multiply = parseInt(optionValue, 10);
  31. }
  32. }
  33. else if (optionName === '--append') {
  34. if (options.append) {
  35. options.append += optionValue; // Append to existing value
  36. } else {
  37. options.append = optionValue; // Initialize if --append not present
  38. }
  39. }
  40. }
  42. return options;
  43. }
  45. const aggregatedOptions = aggregateOptions();
  46. console.log(JSON.stringify(aggregatedOptions, null, 2)); // Output the aggregated options as JSON

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